package com.baomidou.kisso.common.bcprov.math.ec;

/**
 * Class holding precomputation data for the WTNAF (Window
 * <code>&tau;</code>-adic Non-Adjacent Form) algorithm.
 */
class WTauNafPreCompInfo implements PreCompInfo {

	/**
	 * Array holding the precomputed <code>ECPoint.F2m</code>s used for the
	 * WTNAF multiplication in <code>
	 * {@link org.bouncycastle.math.ec.multiplier.WTauNafMultiplier.multiply()
	 * WTauNafMultiplier.multiply()}</code>.
	 */
	private ECPoint.F2m[] preComp = null;


	/**
	 * Constructor for <code>WTauNafPreCompInfo</code>
	 * @param preComp Array holding the precomputed <code>ECPoint.F2m</code>s
	 * used for the WTNAF multiplication in <code>
	 * {@link org.bouncycastle.math.ec.multiplier.WTauNafMultiplier.multiply()
	 * WTauNafMultiplier.multiply()}</code>.
	 */
	WTauNafPreCompInfo( ECPoint.F2m[] preComp ) {
		this.preComp = preComp;
	}


	/**
	 * @return the array holding the precomputed <code>ECPoint.F2m</code>s
	 * used for the WTNAF multiplication in <code>
	 * {@link org.bouncycastle.math.ec.multiplier.WTauNafMultiplier.multiply()
	 * WTauNafMultiplier.multiply()}</code>.
	 */
	protected ECPoint.F2m[] getPreComp() {
		return preComp;
	}
}
